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R E C I P R O C A T I N G P U M P S M E R K U R 2 0 0 0
Air pressure driven double action reciprocating
pumps are recommended for coating and
process materials.
DESCRIPTION OF THE
RECIPROCATING PUMPS
The reciprocating pumps consist of an oscillating
air motor
and a hydraulic section
The ring piston
of the air motor is connected
to the step piston
of the hydraulic section via
the piston rod
and the coupling
Air pressure is applied alternately to the ring
piston via the control
upwards and downwards strokes.
The area ratio of the ring piston to the thinner
part of the step piston determines the pressure
transmission ratio.
During the upwards stroke, the material to be
pumped is sucked via the suction valve
the lower part of the hydraulic cylinder
the material in the top part of the cylinder leaves
the pump under pressure at the pressure
connection
.
During the downwards stroke, the sucked fluid
which is prevented from flowing back by the
decant valve
is forced into the upper part of
the cylinder and at the same time forced into the
pressure system (line) via the pressure
connection.
The fluid volume pumped is the same for the
upwards stroke and for the downwards stroke.
Subject to change
Proc.
15.10.99 Hilse
Approved 19.10.99 Kuhn
F22.060.01, issued on 01.98
.
.
which results in the
into
while
USER INFORMATION
- TECHN. PRODUCT DESCRIPTION -
1
D
A
P
M
B
9
6
Issued
11
5
P
L
12
2
3
10
8
4
7
Page 01 of 06
10.99
B.6.20.44-P
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